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Finding the Fourth Proportional to 530,475.52, 732,065.56 and 288,765.04

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Solution

The fourth proportional to 530,475.52, 732,065.56 and 288,765.04 is: 398,500.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,475.52 : 732,065.56 = 288,765.04 : x
  2. Step 2: Convert to fraction form
    530,475.52/732,065.56 = 288,765.04/x
  3. Step 3: Cross multiply
    530,475.52x = 732,065.56 × 288,765.04
  4. Step 4: Simplify right side
    530,475.52x = 211,394,940,716.02
  5. Step 5: Solve for x
    x = 211,394,940,716.02/530,475.52
  6. Step 6: Final answer
    x = 398,500.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.